Dog shows such as Westminster and Crufts put dogs at risk. Dog breeders routinely use inbreeding and genetic manipulation to achieve certain "desirable" traits, and as a result, as many as one in four purebred dogs is plagued with a serious genetic health problem.

Dogs love us regardless of how we look. They don't care if we have big feet, frizzy hair or an oddly-shaped nose. Whether we're dressed to the nines or we've just rolled out of bed, dogs are always happy to see us. Shamefully, humans have failed to extend the same kindness to them.

We've imposed arbitrary notions of "beauty" on dogs without regard for their health or happiness, and they are suffering for it. For a prime example of this trend, look no further than the canines who will be dragged along to Crufts, Britain's largest doggie "beauty" pageant. Beneath the perfectly coiffed exterior of many of these dogs lies a slew of painful and deadly health problems caused by generations of breeding and inbreeding to achieve a certain "look."

The Kennel Club's "breed standards" encourage breeders to manipulate dogs' bodies as if they were modeling clay. Dachshunds are specifically bred to have long, "stretched-out" spines, which often cause them to suffer from disc disease or other back problems. Cavalier King Charles spaniels – the breed favored by President Ronald Reagan – are bred to have skulls that are nearly flat on top, and more than a third of these dogs suffer from an agonizing condition called syringomyelia, which occurs when their skulls are too small for their brains. Afflicted dogs often scream in agony, scratch themselves raw and become progressively weaker until they can barely walk. Some become paralyzed. The "pushed-in" faces of English bulldogs and pugs make it so difficult for them to breathe that many can't even enjoy the activities that dogs love, such as chasing a ball or going for walks, without struggling for air.

Breeders also force closely related dogs to mate in the hope of passing down certain physical features that are favored by show judges. This practice is so common that all 10,000 pugs living in Britain are descended from just 50 dogs. The lack of genetic diversity caused by inbreeding greatly increases the likelihood that recessive genes, which cause debilitating afflictions, will be passed along to puppies. As a result, roughly one in four purebred dogs suffers from serious congenital defects, such as hypothyroidism, epilepsy, cataracts, allergies, heart disease and hip dysplasia – a disease that can lead to crippling, lameness and painful arthritis.

Each of the 50 most common dog breeds is at risk for some genetic defect which can cause suffering, according to a study published in The Veterinary Journal. Labrador retrievers are predisposed to bone disease, hemophilia and retinal degeneration, and nearly 60 percent of golden retrievers suffer from hip dysplasia. These dogs pay with their health – and sometimes their lives – because of the cosmetic standards promoted by The Kennel Club and Crufts.

Offering further proof that it is interested only in dogs' outward appearances, Crufts has decided this year to allow dogs in its show to be doused with "performance-enhancing" products such as hairspray and white chalk to erase "stains" on white fur. The excessive bathing, brushing, snipping and fluffing that dogs must patiently endure before entering the ring at Crufts is already an arduous and sometimes uncomfortable process. Spraying chemicals on dogs' fur could put their health at risk or cause an allergic reaction. At the very least, being forced to inhale the odor of hairspray is a terrible offense to their sensitive noses.

Even dogs who will never set foot in a show ring suffer because of Crufts and the breeding industry that it props up. Every new puppy born to a breeder means one home fewer for a dog waiting in an animal shelter. By driving up the demand for pedigree dogs and encouraging breeders to bring more dogs into existence when there aren't enough homes for those who are already here, Crufts sentences homeless dogs to euthanasia or life behind bars.

Dogs are smart, complex animals – not bonsai trees to be contorted into shapes that please us. Instead of tinkering with their genetics and entering them in silly pageants, we should let dogs be dogs and respect and appreciate them regardless of their outward appearance – just as they do for us.